1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <sys/types.h>
30#include "sharemgr.h"
31#include <stdlib.h>
32#include <stdio.h>
33#include <string.h>
34
35/*
36 * Utility functions shared by sharemgr and sharectl.
37 */
38
39/*
40 * add_opt(optlist, optarg, security?)
41 *	Add a new parsed option to the option list provided.
42 *	If the option is a security option, only add if we are
43 *	processing security options.
44 */
45int
46add_opt(struct options **optlistp, char *optarg, int unset)
47{
48	struct options *newopt, *tmp, *optlist;
49	char *optname;
50	char *optvalue;
51
52	optlist = *optlistp;
53	newopt = (struct options *)malloc(sizeof (struct options));
54	if (newopt == NULL)
55		return (OPT_ADD_MEMORY);
56
57	/* extract property/value pair */
58	optname = optarg;
59	if (!unset) {
60		optvalue = strchr(optname, '=');
61		if (optvalue == NULL) {
62			free(newopt);
63			return (OPT_ADD_SYNTAX);
64		}
65		*optvalue++ = '\0'; /* separate the halves */
66	} else {
67		optvalue = NULL;
68	}
69
70	newopt->optname = optname;
71	newopt->optvalue = optvalue;
72	newopt->next = NULL;
73	if (optlist == NULL) {
74		optlist = newopt;
75	} else {
76		for (tmp = optlist; tmp->next != NULL;
77		    tmp = tmp->next) {
78			/*
79			 * Check to see if this is a duplicate
80			 * value. We want to replace the first
81			 * instance with the second.
82			 */
83			if (strcmp(tmp->optname, optname) == 0) {
84				tmp->optvalue = optvalue;
85				free(newopt);
86				goto done;
87			}
88		}
89		tmp->next = newopt;
90	}
91done:
92	*optlistp = optlist;
93	return (OPT_ADD_OK);
94}
95